Hot take: optics are better abstraction than lenses, in *all* use cases. Why? They make explicit all the things you're implicitly thinking about anyway when using lenses. I think they are really important in shaping how we think about bidirectional maps. A short thread. 👇 1/9

#3/thread on Angkor wat

Christianity and islam may be the largest religion of today’s world but Sanatan dharm has the largest religious monument in the world in the form of Angkor wat. It is situated in combodia and spread across over 400 acres / 1.6 km².

It was listed as a UNESCO World Heritage Site in 1992, which encouraged an international effort to save the complex.
It was originally built as a Hindu temple dedicated to the god Vishnu. In Khmer, the Cambodian language, Angkor means "city" and Wat means "temple grounds".

So Angkor Wat means "Temple City". Its original name was Vrah Vishnuloka or Parama Vishnuloka, meaning the sacred dwelling of Vishnu in Sanskrit.
But, it gradually turned into a Buddhist temple towards the end of the 12th century & is still used for worship today.

Angkor Wat was initially designed and constructed in the first half of the 12th century, during the reign of Suryavarman II, as the king’s state temple and capital city. It was built without the aid of any machinery, as there was no machinery available at that time.

Evidence for these dates comes in part from inscriptions, which are vague, but also from the architectural design and artistic style of the temple and its associated sculptures.

Another aspect is that the five central towers of Angkor Wat symbolize the peaks of Mount Meru,

SRI SWETHA VINAYAGAR, THIRUVALANCHUZHI, KUMBAKONAM
(TN)
#bharatmandir

While main deity is Shiva as Kapartheeswarar, the kshetram is famous for Ganesha, known as Swetha/Vellai Vinayagar (white Vinayak)

During samudra manthan, Vasuki snake (used as rope) started spewing venom.

Unable to bear the intense heat, Devas rushed to Siva. He told them that this was because the task was started without getting Ganesha’s approval.
So the Devas created a Ganesha murti from white sea foam and worshipped it.
It was later taken by Indra to Indralok.
@GunduHuDuGa

But once Indra had to come to Earth to pray to Shiva to seek relief from a curse inflicted on him. So he brought the murti of Ganesha with him. When he came here, he wanted to take bath before puja. So he gave the murti to a boy to hold for sometime. The boy was actually Shiva.

He kept the murti down and vanished. Indra could not lift it again and a divine voice told him to let Vinayagar stay there and visit every Ganesh Chaturthi to pray.
Since Vinayagar is made of foam, no abhishekam is done here. Only punugu is applied n camphor powder is sprinkled

MAHARAJA CHHATRASAL BUNDELA was the great Bundela King who revolted against the Mughal ruler Aurangzeb.
Chhatrasal Bundela was born in year 1649 CE in Maur Hill of Bundela region to Champat Rai and Lal Kunwar. He was the descendent of Rudra Pratap of Orchha.

His ancesters were the vassals of Mughal Emperor. He drew inspiration from his father and revolted against the alien rule of Mughals. He was just 12 yrs old when his parents died in fight against the Mughal Army of Aurangzeb in 1661.

When his beloved father attained martyrdom in the year 166, the young Chatrasal was present in the last battle of his father against the Mughal and from these valiant campaigns,..

..he gathered the courage to free Bundelkhand from Aurangzeb’s rule.
He joined the Mughals initially, and was recommended by the Rajput King Mirza Jai Singh to be recruited in the Mughal Army in order to support their Deccan Campaigns.

But serving the alien rule of Mughals which brought chaos and misery to Bundelkhand was unacceptable for Chatrasal Bundela and his father’s incessant struggle against the Mughals kept the fire of independent Bundelkhand alive in his heart.

For fun I made a Robinhood account. It took me 5 minutes to sign up, get approved and transfer funds for trading...

Here's some details... Read on.

...it took me another 5 minutes to get qualified for options.

If I share a sign up I get "free shares" and I can share as much as I want up to 500$ worth.

The main UI has a prepopulated "list" of stocks/crypto to watch and links to news.

Clicking a stock opens a "trade" button that looks like this.

Notice options is first, buy second.

Options took me to an approval process (which took about a minute) and now away I go trading Baba options.

Buying stock looks like this. It emphasizes fractional shares.

Okay look - I didn’t grow up with comic books. But I read stacks of science fiction digests and I kit-bashed model cars into fantasy rods, and just tried to maintain a low profile until I could get out of the house. So you could say I’m a distant cousin of the comic book fan. /1

And sometimes one’s childhood passion follows them into adulthood, sometimes not, sometimes as an adult one finds a passion they never had as a child and embraces it. For me, that must include getting involved with a puppet show at the age of thirty. /2

So who’s to say whose passion’s legitimate and whose is bogus? Nobody. Someone might indict your passion but they have no ground to stand on and should be dismissed out of hand. /3

Maybe they’re envious that you have a passion, maybe they think that their passion is cooler than yours, or maybe they’re just insecure, who knows. Doesn’t matter. /4

What matters is that if something gives you joy, and in the process doesn’t hurt others, then by all means follow it. It’s how we explore our secret hopes, our shadow sides, our inner character. /5